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发明名称
Improvements in or relating to fire alarm systems
摘要
申请公布号
GB435463(A)
申请公布日期
1935.09.23
申请号
GB19340009004
申请日期
1934.03.22
申请人
TELEFONAKTIEBOLAGET L.M. ERICSSON
发明人
分类号
G08B17/06
主分类号
G08B17/06
代理机构
代理人
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